19 Display Properties of a Controller, Array, Logical Device and a Physical Device

This section lists the display properties of a controller, accelerator, array, logical device and physical device.

Table 19-1. Controller Display Properties
Property	Tooltip Details
Model	Model of the Controller
Status	The status of the controller based on its resources.
Mode	Mode of the controller on which it is operating.
Driver Version	Current version of driver installed on the system.
Driver Name	Driver name describes the name of the driver.
I2C Address	I2C address describes the Inter-Integrated Circuit (I2C) slave address.
NVMe Config Update Remaining Count	The NVMe Config Update Remaining Count property indicates the remaining number of XLR Management operation (configuring or unconfiguring a drive, or updating drive labels) that can be completed without needing to reboot.
Reboot Required Reasons	Indicates the reason why a controller cold reboot is required.
Rebuild Priority	Rebuild priority determines the urgency with which the controller treats an internal command to rebuild a failed logical drive. At the low setting, normal system operations take priority over a rebuild. At the medium setting, rebuilding occurs for half of the time, and normal system operations occur for the rest of the time. At the medium high setting, rebuilding is given a higher priority over normal system operations. At the high setting, the rebuild takes precedence over all other system operations.
Expand Priority	Expand Priority setting determines the urgency with which the controller treats an internal command to expand an array. At the low setting level, normal system operations take priority over an array expansion. At the medium setting, expansion occurs for half of the time, and normal system operations occur for the rest of the time. At the high setting, the expansion takes precedence over all other system operations.
Consistency Check Priority	Consistency Check Mode is an automatic background process that ensures that you can recover data if a drive failure occurs. The scanning process checks physical drives in fault-tolerant logical drives for bad sectors and it also verifies the consistency of parity data if applicable. The available modes are disable, high, or idle. The idle mode must also specify a delay value. When set to high, the check will run in parallel to host I/O and may have an impact on performance. When set to idle, the check will only run during periods of host inactivity and will not impact performance.
Consistency Check Delay	Consistency Check Delay determines the time interval for which a controller must be inactive before a consistency check is started on the physical drives that are connected to it. The value can be between 0 and 30 to specify the duration of the delay in seconds. A value of 0 disables the scan. The default value is 3 seconds.
Parallel Consistency Check Count	Parallel consistency check count describes the number of logical devices on which the controller will perform consistency check in parallel.
Consistency Check Inconsistency Notify	Consistency Check Inconsistency Notify property enables the event notification messages and serial debug log messages for mirrored volumes.
Spare Activation Mode	Spare activation mode feature enables the controller firmware to activate a spare drive. The firmware starts rebuilding a spare drive only when a data drive fails, if the mode is set to Failure. With the predictive failure activation mode, rebuilding can begin before the drive fails when a data drive reports a predictive failure (SMART) status which will reduce the likelihood of data loss that could occur if an additional drive fails.
UEFI Health Reporting Mode	UEFI Health Reporting Mode allows the user to change whether to report UEFI driver health error messages on the boot screen and halt the boot process or not. The UEFI Health Reporting Mode can be either “Enabled” or “Disabled”. The default mode is “Enabled”, which reports all the UEFI driver health error messages on the boot screen and halts the boot process. The “Disabled” mode does not report any UEFI driver health error messages on the boot screen and continues the booting regardless of the errors.
Drive Cache
Write Cache Policy for Configured Drives	This option allows to configure the write cache policy on a controller. Setting to default allows the controller to optimize the drive write cache policy of those drives. Enabling drive write cache can increase write performance but risks losing the data in the cache on sudden power loss. Setting the policy to “unchanged” means that the controller will make no changes to the drive’s default power-on write cache policy.

Table 19-2. Accelerator Display Properties
Property	Tooltip Details
Status	Status of the accelerator based on its resources.
Accelerator ID	Describes the unique identifier of the accelerator.
Serial Number	A unique number assigned to the controller, used for identification and inventory purposes.
WWN	A World Wide Name (WWN) is a unique identifier of the controller.
Physical Slot	PCI slot number to which the controller is connected.
Temperature	Current temperature of the controller.
Power Consumption	Power Consumption of the controller.
Negotiated PCIe Data Rate	Negotiated PCIe Data Rate describes the PCIe version, lane width and throughput details.
PCI Address (Domain:Bus:Device.Function)	PCI address describes the PCI address for the controller.
NOR Flash Type	Describes the NOR Flash Type of the controller.
Firmware Version	Active firmware version of the controller.
Hardware Revision	Describes the hardware revision information about the controller.
Hardware Minor Revision	Describes the hardware minor revision information about the controller.
CPLD Revision	Describes the CPLD revision information about the controller.

Table 19-3. Array Display Properties
Property	Tooltip Details
ID	ID describes unique array identifier within the controller.
Name	Name describes unique name of array.
Device Type	Type describes the type of the array such as data array, backup array and so on.
Interface Type	Disk drives which are the member of array can have interface type such NVMe SSD. The interface type of array is based on the member disk drives interface type.
Total Space	Total usable size is the total space available in the array for creating logical device.
Used Size	The total disk space used by the logical device(s) on the given array.
Unused Size	Unused size is the free space available to create new logical device to store the data.
Member Device(s) Block Size	Block size indicates the maximum size of data block on disk drives which are member of array (can be 512 Bytes or 4K).
Status	The status of the array based on the state of its member physical device(s).
Transformation Status	Transformation status indicates whether the array is transforming or not.
Protected by Hot Spare	Protected by Hot Spare indicates whether the array is protected by Hot Spare.
Spare Rebuild Mode	Spare rebuild mode describes the spare type for the array. It can be "dedicated" or "auto replace" if the array is valid.
Member Logical Device(s)	Number of logical device(s) present in the array.
Member Physical Device(s)	Number of physical device(s) used to create the array.
Spare Drive(s)	Number of spare drives associated to this array. If a drive fails in the array, the controller automatically rebuilds the data onto the spare drive.

Table 19-4. Logical Device Display Properties
Property	Tooltip Details
ID	Describes unique ID of logical device listed.
RAID Level	RAID level on which the logical device has been created.
Device Type	Drive type indicates the type of logical device, such as data and so on.
Interface Type	Disk drive which are RAID member of logical device can have interface type such as NVMe will also reflect as interface type of logical device.
Data Space	Data space is where actual data is striped across the disk drives.
Stripe Size	Stripe size is the amount of data (in KB) written to one disk drive, before moving to the next disk drive in the logical device. Stripe size options vary, depending on your controller and RAID level.
Full Stripe Size	Full stripe size refers to the combined size of all the strips across all physical drives, excluding parity-only drives.
Member Device(s) Block Size	Maximum size of data block on disk drives which are RAID member of logical device (can be 512 Bytes or 4K).
Volume Unique Identifier	The logical device unique identifier.
Heads	Heads indicates the pre-defined space set aside for RAID redundant information on a logical device.
Sectors Per Track	Sectors Per Track specifies the number of sectors that are to comprise each track.
Cylinders	Cylinders indicates the set of all of tracks of equal diameter in a logical device.
Status	The status of the logical device based on the state of its RAID members.
Name	Logical device name can be a maximum of 64 characters and it should contain only ASCII characters Note: Duplicate logical device names are not allowed.
Disk Name	Name of the logical disk drive
Mounted	Mount points describes the Operating system device names of the logical device.
Protected by Hot Spare	Protected by Hot Spare indicates whether the logical device is protected by Hot Spare.
Consistency Check Status	Indicates whether the consistency check is currently running on the logical device or not.
Last Consistency Check Completion Time	Indicates when the last consistency check was completed on the logical device.
Last Consistency Check Duration	Indicates how long it took to complete the last consistency check on the logical device.

Table 19-5. Physical Device Display Properties
Property	Tooltip Details
Vendor	Physical device manufacturer name.
Model	Product model name of the physical device.
Serial Number	Serial number of physical device.
Interface Type	Interface Type indicates the drive interface standard such as SATA SAS or NVMe, which affects compatibility of the drive, data transfer speed that determines how fast the data is read and written and RAID feature support that includes hot-swapping error recovery and performance improvements in RAID configurations.
Total Size	Total data storage capacity of the physical device.
Logical/Physical Block Size	Logical block size is the maximum size of data block on disk drives which are RAID member of logical device (can be 512 Bytes or 4K). Physical block size is the actual block size on the physical device. Misalignment between them causes extra read/write operations, reducing performance and device lifespan. Aligning these sizes improves efficiency, performance and durability.
Firmware Level	Firmware Level refers to the version of the internal software programmed by the manufacturer that runs on the drive’s hardware. It manages how the drive reads, writes, organizes data, handles errors and communicates with other devices. Firmware directly influences the drive’s performance, reliability, features and compatibility. Keeping firmware updated fixes bugs, enhance functionality and improve overall drive stability.
Unique ID	Unique ID is the distinct identifier assigned to the physical device for precise identification.
Reported Channel	Reported Channel of a drive is the physical port or the channel on the controller where the drive is connected. The controllers have multiple channels or ports, and each can support one or more drives depending on the design and structure of the controller hardware.
Reported Device ID	Reported Device ID is a specific identifier assigned by the controller’s firmware to represent a physical drive within the controller’s operational context, including its connected ports and device topology. The ID helps the controller, and its driver to accurately identify, monitor and manage the physical drive during configuration, status updates and troubleshooting.
PCI Address (Domain:Bus:Device.Function)	The PCI Address (Domain:Bus:Device.Function) uniquely identifies a device’s location in the system’s PCI hierarchy. It uses a 16-bit domain for host controllers, an 8-bit bus number, a 5-bit device number and a 3-bit function number for multifunction devices. This allows accurate identification, management and configuration of PCI devices across multiple domains.
Parent PCI Address (Domain:Bus:Device.Function)	The Parent PCI Address specifies the unique location of a parent device in the PCI bus hierarchy using Domain, Bus, Device and Function numbers. It helps map physical device relationships, track hardware dependencies and manage device configurations to ensure proper communication and performance.
XLR Configuration State	XLR Configuration State reflects the NVMe drive controller’s readiness to handle data operations such as RAID management, disk access and firmware processing. Monitoring this state helps identify setup issues early and ensures reliable system stability and storage performance.
Label	Label is a text-based identifier assigned to a physical device to simplify recognition and management. It helps users quickly differentiate devices or volumes, supports better organization, and aids troubleshooting by providing meaningful names alongside the Device ID.
Unmanaged OS Boot Drive	The Unmanaged OS Boot Drive property indicates whether the drive contains an operating system partition or boot volume that is not managed by the XLR management. It helps identify drives with existing OS installations, alerting users to potential data loss risks during configuration.
Sanitize Erase	Sanitize Erase is a secure data deletion process that permanently removes all data from the storage device by overwriting or destroying the data at the hardware level, ensuring that the information cannot be recovered. This method is often used to safely retire or repurpose drives.
Encryption Capability	Encryption Capability indicates whether the storage device supports data encryption to protect sensitive information. When enabled, encryption helps secure data by encoding it, making it accessible only to authorized users with the correct decryption key.
State	The state of a physical drive indicates its current operational status or condition.
Negotiated Transfer Speed	Negotiated data transfer rate of selected physical device.
Configuration Type	Configuration Type identifies the designation of the physical drive within the storage system which determines how the drive is integrated and utilized, whether as a member of a logical device or as a standalone resource. Common configuration types include Data, Cache, Spare, HBA, Unassigned, In Transit, Unsupported for RAID or Unknown.
Has Stale RIS Data	Has Stale RIS Data indicates that the storage device contains outdated or invalid Remote Instant Secure (RIS) data. Stale RIS data can interfere with remote management, recovery or provisioning tasks, potentially causing delays or failures in system updates and secure communications. Regular refresh or clearing of this data may be required to ensure proper operation.
SMART	Indicates whether the physical device supports S.M.A.R.T for monitoring drive health and predicting potential failures.
S.M.A.R.T. Warning	Indicates if the storage device has detected any issues or potential failures based on its S.M.A.R.T monitoring data. Warnings help alert users to take preventive action before data loss occurs.
Current Temperature	Current temperature indicates the physical device’s temperature at present, providing important information to monitor its operating condition and performance.
Maximum Temperature	Maximum temperature indicates the highest temperature reached by the physical device over a specific period, helping to ensure it operates within safe limits and prevents overheating.
Threshold Temperature	Threshold Temperature refers to the predefined temperature limit at which specific actions or alerts are triggered to protect the physical device from damage due to overheating or other thermal issues. It is used to maintain safe operating conditions and ensure reliable performance.
Physical Link Rate	Physical Link Rate is the actual data transmission speed between a device and adapter, measured in gigabits per second. It depends on the device and controller capabilities, cable quality and negotiated connection speed. Changes in this rate can signal issues like cable faults or hardware limits. Monitoring it helps verify performance, troubleshoot problems and optimize system efficiency.
Logical Link Rate	Logical Link Rate is the actual data transfer speed between the storage controller and host OS after accounting for protocol overhead and error correction. It is lower than the Physical Link Rate and reflects usable bandwidth. Monitoring it helps assess performance, identify bottlenecks and optimize storage efficiency.
Maximum Link Rate	Maximum Link Rate is the highest data transfer speed supported by the connection between the device and controller, measured in gigabits per second. It sets the upper bandwidth limit, though actual speeds may be lower due to cable quality, device capabilities and overhead. Monitoring it helps verify performance and identify physical device limits.
Last Failure Reason	Last Failure Reason provides the specific cause associated with the most recent failure event detected by the device. This information helps users understand what went wrong and enables targeted troubleshooting or preventative maintenance.
Unsupported Reason	Unsupported Reason displays the specific cause or explanation why a feature, command or device is not supported or cannot be used on the current system or hardware.
Power-On Hours	Power On Hours represents the cumulative time, typically measured in hours, that the device has been powered on and operational since manufacture or the last reset. Tracking power-on hours helps assess device usage, plan maintenance schedules and estimate device wear.
Usage Remaining	Usage Remaining displays how much of the device’s rated operational capacity or lifespan remains, expressed as a percentage. This metric is useful for predicting when the device will approach the end of its usable life and when it may need to be replaced.
Estimated Life-Remaining	Estimated Life Remaining indicates how much longer the device is expected to perform reliably under normal operating conditions. This is calculated based on current wear, usage patterns and device health indicators.
Smart Trip Wear-Out	Smart Trip Wear Out is a warning or threshold event triggered by the device’s health monitoring system when wear-related parameters reach predefined limits. When this trip point is reached, the device may start to degrade, and replacement or servicing is recommended soon.
Fifty Six Days Warning	Indicates fifty six days warning.